Improvement in machines for nailing and clamping picture-frames



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M. ROSE. Machine for Nailing and Clamping Pi0ture-Frames.. -No. 199,579. Patented Jan. 22,1878;

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M. ROSE. Machine for Nailing and-Clamping Picture-Frames. No. 199,579. Patented Jan. 22,1878.

s PATENT OFFICE;

.Moi tjRrs oss, OF'NEW YORK, N. Y.

I MPRFOVEMFENT |N- MACHlNESFOR NAILING AND CLAMPlNG PICTURE-FRAMES.

Specification forming part of Letters Patent No. 199,579, dated J annary 22, 1878 application filed December 5, 1877.

To albwhom it may concern:

Be it known that I, MORRIS ROSE, of the city, county, and State of New York, have in vented anew andlmproved Machine for Clamping andNailing Picture-Frames, which invention is fully set forth in the following specification, reference being bad to the accompanying drawing, in which- Figure I represents a plan or top view.- Fig. 2 is a vertical section in the plane to at, Fig. 1. Fig. 3 is a similar section in the plane y y, Fig. 1. Fig. 4 is asimilar section in the plane a z,

a Fig. 1.

Similar letters indicate corresponding parts; This invention consists in the combination of a clamping device and of a nail driving device. The clamping. device consists of a stationary angular jaw, and of a-movable jaw corresponding in form to 1 the stationary jaw, and connected to a slide which carries a sectional nut that engages with a screw-spindle, and can be thrown out of gear withsaid screwspindle by a finger-lever, sothat bypressing on said finger-lever the movable jaw can be rapidly moved close up to its clamping position, and a slight turn given to the screw-spindle is sufficient to clamp firmly the article placed between the two jaws.

The nail-driving device consists of nail-receiving sockets, (one or more,) which are adjustably attached to the stationary jaw, and of nail-drivers, which are adjustably attached to a slide, to which a reciprocating motion is imparted by the combined action of a spring and foot-lever.

In the drawing, the letter A designates a table, which rests on legs B, and which forms the support for the clamping device 0 and the nailing device D.

The clamping device 0 consists of a stationary jaw, a, which is supported by and firmly connected to a head, b, that forms the bearing for a screw-spindle, 0, and from which extends a guide, d, in which the slide 6 moves. The screw-spindle turns loosely in the head b but it is prevented from moving therein in the direction of its length, and its free end extends into and is guided by a shell, f, secured to the slide 0. Into this shell is fitted a sectional nut, 9, (see Fig. 3,) which is depressed bya spring, h, and which can be raised by a finger-lever, i.

A hand-wheel, j, servesto turn the screwspindle; When the nut g is raised out of gear with the screw-spindle the slide 6 can be freely moved toward and from the stationary jaw a. On the'top of the slidee is situated the movable jaw j, which is. secured in its position by a lug, k, andset-screw l. By releasing this set-screw the'movable jaw can be taken off and replaced by another of different form.

. firmly clamped between the two jaws.

By changing the form of the j aw my clamping device is applicable for articles of various forms or shapes.

The stationary jaw a, which I use in my machine, consists of a platform for supporting the frame-pieces m m, Fig. l, a corner lug, at,

and two lateral lugs, 0, all of which are firmly secured to or cast solid with the head 12.

The nail-driving device consists of one or more sockets, p 19,two being shown in the drawing, which are secured by means of brackets q to the head b, said brackets being secured in position by set-screws 1', which extend through slots 8, so that the sockets can be adjusted to suit the size of the frame-pieces to be nailed. The socket p is attached to its bracket bya set-screw passing through a slot, so that an additional adjustment is provided for this socket.

Each of the sockets p 0 co-operates with a nail-driver, t t These nail-drivers are carried by aslide,u,which moves in guidewaysaformed in an arm extending from the head b. The

nail-driver t is secured to a bracket, to, which can be adjusted vertically and laterally, so that said nail-driver can be readily brought in line with the socket p. The nail-driver t is secured to a bracket, b, which is secured to the slide-u by a set-screw, a, passing through a slot, d, so that it can be moved in and out, and also turned, as may be required. The bracket b carries two slides, e f, one of which is adjustable in a horizontal direction by a screw-spindle, 9, while the other is adjustable in a vertical direction by a screw-spindle, b.

By these means the nail lriver t can always b'ebrought in line with its socket 11, and both the nail-drivers and their sockets can be readily adjusted for frame-pieces of difi'erent sizes.

The slide to is provided 011 its under surface withcogs i, which engage with a pinion, 7' mounted on a shaft, is, which has its bearings undertheguideways o. On this shaftis mounted awheel, l, which connects, by a rope or chain, m, with a foot-lever, n. The slide u is connected to a spring, 0, which has a tendency to pull the same back to the position shown in Figs. 1 and 2. By stepping on the footlever a the slide u is caused to move toward the stationary jaw a.

The hand-wheel j, which is mounted on the screw-spindle, c is connected, bya rope or chain, 1', with two foot-levers, q! Q2, the rope or chain being fastened to the wheel j by a pin, r, which can be adjusted in difl'ere'nt holes provided for its reception in the circumference of the wheel.

The object of this arrangement is to enable the workman to operate the clamping device without using his hands.

The movable jaw j is moved up to such a distance from the stationary jaw 01, that the frame-pieces to be nailed can be freely introduced, and after these frame-pieces have been brought in the position shown in Fig. 1 the workman steps on the foot-lever g thereby turning the screw-spindle 0, so as to clamp the frame-pieces tightly between the jaws; then he steps on the foot-lever n, and the nails, which have been previously introduced into the sockets 101?, are driven into the framepieces, so as to unite them firmly at the corners.

It will be readily seen that by these means frame-pieces of any size can be readily secured together without the least danger of injuring the molding or the faces of said framepieces.

What I claim as new, and desire to secure by Letters Patent, is-

1. The combination, in a machine for nailing picture-frames, of a clamping device, consisting of a head, b, a fixed jaw, a, and movable jaw j, of lateral nail-receiving sockets, (one or more,) attached to the head b of the clamp by slotted plates adapted to be adjusted both vertically and laterally, and nail-drivers (one or more) attached to a horizontal slide, D, by slotted plates adapted to be adjusted both vertically and laterally, all substantially as shown and described.

2. The combination, with a stationary jaw, a,of a movable jaw, j secured to a slide, e, a screw-spindle, c, which turns in the head sup porting the stationary jaw, and extends into a shell secured to the slide 6, and a sectional nut, g, which engages with the screw-spindle, all combined and adapted to operate substantially as set forth.

3. The combination, with a clamping device, adjustable nail-receiving sockets, (one ormore,) adjustable nail-drivers, (one or more,) a slide having cogs on its under side, adapted to en gage a pinion-to operate the nail-drivers, and independent foot-levers connected with the clamping device, and the slide carrying the nail-drivers,- substantially as and for the purpose described.

In testimony that-I claim the foregoing I have hereunto set my hand and seal this 28th day of- November, 1877.

- MORRIS ROSE. [L. s.] Witnesses: r

W. HAUFF, Ones, WAHLERS. 

